Former Brazilian President Michel Temer, pictured in 2018, was arrested Thursday on corruption charges. He faced similar charges of bribery in 2017, during his brief stint in office. The 78-year-old denies any wrongdoing. Amilcar Orfali/Getty Images hide caption
Colombian police escort a Venezuelan soldier into Cúcuta, Colombia. The soldier surrendered at a bridge crossing the Venezuela-Colombia border, where people tried to carry humanitarian aid into Venezuela on Feb. 23. Fernando Vergara/AP hide caption
Nicaragua's Apostolic Nuncio Waldemar Sommertag speaks next to the OAS special envoy Luis Ángel Rosadilla during a news conference in Managua on Wednesday. They said the government had agreed to release detainees within 90 days. Maynor Valenzuela/AFP/Getty Images hide caption
A damaged door frame is seen at the home of Roberto Marrero in Caracas on Thursday. Opposition leader Juan Guaidó says his chief of staff was detained by Venezuelan intelligence agents. Ivan Alvarado/Reuters hide caption
Eloisa Tamez of El Calaboz, Texas, walks along the border wall in her backyard. She took the government to court over surveying her land and over the compensation she received for the land needed for border wall construction. Reynaldo Leanos Jr./Texas Public Radio hide caption
U.S. diplomats began the exodus from the Caracas, Venezuela, embassy earlier this week. On Thursday, U.S. Secretary of State Mike Pompeo confirmed the last remaining American diplomats have left the country. Fernando Llano/AP hide caption
A U.S. flag flies outside the U.S. Embassy in Caracas, Venezuela, in January. Secretary of State Mike Pompeo announced that all remaining embassy personnel would be withdrawn this week. Fernando Llano/AP hide caption
A worker inspects damage in a supermarket in Caracas on Sunday after it was looted during Venezuela's dayslong blackout. Carlos Garcia Rawlins/Reuters hide caption
Archaeologist Ana Celis checks out an artifact. Courtesy of Karla Ortega hide caption
Protesters took to the streets Saturday with tensions rising between opposition leader Juan Guaidó and President Nicolás Maduro, as crisis-wracked Venezuela began to emerge from the chaos of an electricity blackout. Matias Delacroix/AFP/Getty Images hide caption
Smoke billows from aid trucks set on fire on the Francisco de Paula Santander International Bridge between Colombia and Venezuela, on Feb. 23. Edinson Estupiñán/AFP/Getty Images hide caption
Amid a widespread power outage in Venezuela on Thursday, relatives of a patient walk in the dark halls of a health clinic in Caracas. Ariana Cubillos/AP hide caption
Susette, age 4, with her mother, Carmen. The child's father left Venezuela for Chile to earn money to send back home. Gustavo Ocando/NPR hide caption
Brazil's President Jair Bolsonaro attends an event to celebrate 211 years of the creation of the Brazilian Marine Corps in Rio de Janeiro, Brazil on Thursday Mauro Pimentel/AFP/Getty Images hide caption
This 2018 photo released by Florida-based WPLG TV shows U.S. journalist Cody Weddle in Caracas, Venezuela. Weddle was seized by security forces at his apartment early Wednesday, according to lawyers and press freedom groups. AP hide caption
Venezuelans take part in a rally in Barcelona, Spain, on Feb. 2 to show support for the movement to push Venezuela's President Nicolás Maduro out of office. Emilio Morenatti/AP hide caption
Secretary of State Mike Pompeo in the Philippines last week. Bullit Marquez/AP hide caption
Venezuelan opposition leader Juan Guaidó waves to supporters from inside a car as he leaves his hotel next to his wife, Fabiana Rosales, in Salinas, Ecuador, on Sunday. Rodrigo Buendia /AFP/Getty Images hide caption
An aerial view shows flooding triggered by a dam collapse near Brumadinho, Brazil, in January. Brazil has opened a corruption probe into the disaster. Bruno Correia/AP hide caption
A female Anopheles gambiae mosquito feeds on human blood through a mosquito net. Emily Lund hide caption
TV network Univision says its journalist Jorge Ramos has been released after being held against his will by Venezuelan President Nicolás Maduro in Caracas, Venezuela. In this photo, Ramos, with journalists Maria Elena Salinas (center) and Karen Tumulty, were moderators at a Democratic presidential debate in 2016. Wilfredo Lee/AP hide caption
Demonstrators throw stones at a line of Venezuelan National Guard troops along Venezuela's border with Brazil, at the Brazilian city of Pacaraima on Sunday. Ricardo Moraes/Reuters hide caption
In this photo released by Colombia's presidential press office, Venezuelan opposition leader Juan Guaido makes a statement as Colombian Foreign Minister Carlos Holmes Trujillo stands by at a military airport on Sunday. Efrain Herrera/AP hide caption
Supporters of Venezuela's opposition leader Juan Guaido struggle with members of Venezuela national police at the Francisco de Paula Santander International Bridge between Cúcuta in Colombia and Ureña in Venezuela, on Saturday. Schneyder Mendoza/AFP/Getty Images hide caption
U.S. soldiers direct traffic outside the residence of the Peruvian ambassador to Panama, right rear, in Panama City on Jan. 9, 1990. In December 1989, U.S. President George H.W. Bush sent thousands of troops to Panama to arrest the country's leader, Manuel Noriega. John Gaps/AP hide caption